Method and device for the measurement of linear speeds without c

Details Method and device for the measurement of linear speeds without c Method and device for the measurement of linear speeds without c

1980-02-28

1982-01-26

Buczinski, S. C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

356373, G01P 336

Patent

active

043125921

ABSTRACT:
For continuous measurement of the linear speed of relative travel of an object 11 in front of a measuring device 10 two fixed zones 21,22 in the path of the object are illuminated by means of two parallel laser beams emitted by a single source 15, images of the two zones illuminated are formed upon one and the same transducer 17 the output signal from which is processed electronically by autocorrelation in order to determine the time of travel of a point on the object in going from one illuminated zone to the other.

REFERENCES:
patent: 3446558 (1969-05-01), Seaton
patent: 3508066 (1970-04-01), Agar
patent: 3689157 (1972-09-01), Andermo
patent: 3804518 (1974-04-01), Meyr
patent: 3865487 (1975-02-01), Andermo
patent: 4155647 (1979-05-01), Michel
patent: 4201467 (1980-05-01), Hartmann et al.
J. T. Ator, Applied Optics, vol. 5, No. 8, Aug. 1966, p. 1325.

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